Suggestions by @jl_new_generation

Henry Cavill

as Adam Neutron in Firestorm

Score: +1

Aldis Hodge

as Quincy Sorin in Firestorm

Score: +1

Tessa Thompson

as Shae Kaldara in Firestorm

Score: +1

Hugh Jackman

as Victor Malachi in Firestorm

Score: +1

Florence Kasumba

as Kara Zoltron in Firestorm

Score: +1

Florence Pugh

as Helen Wright in Firestorm

Score: +1

Diego Luna

as Alex Morales in Firestorm

Score: +1

Maika Monroe

as Natalie Vega in Firestorm

Score: +1

Bryan Cranston

as Martin Stein in Firestorm

Score: +1

Israel Broussard

as Ronnie Raymond in Firestorm

Score: +1

Isabela Merced

as Elena Ramirez in Green Lantern

Score: +1

Gemma Arterton

as Eleanor Blake in Green Lantern

Score: +1

John Patrick Amedori

as Victor Cruz in Green Lantern

Score: +1

Denzel Washington

as Robert Stewart in Green Lantern

Score: +1

Viola Davis

as Sarah Stewart in Green Lantern

Score: +1

Bill Skarsgård

as Vrilax "Orrore" Shard in Green Lantern

Score: +1

Gina Torres

as Dr. Serena "Compassione" Taylor in Green Lantern

Score: +1

Pedro Pascal

as Thorne "Terrore" Darkstar in Green Lantern

Score: +1

Letitia Wright

as Xara "Stella Errante" Vela in Green Lantern

Score: +1

John David Washington

as Drexar "Competizione" Korr in Green Lantern

Score: +1